value.h File Reference

A generic value type for use in arrays, datums and variables. More...

Detailed Description

A generic value type for use in arrays, datums and variables.

#include <stdint.h>

Go to the source code of this file.

Macros
#define	DAS_FILL_VALUE   -1e31
	Canonical fill value (.
#define	DAS_INT64_FILL   -0x7FFFFFFFFFFFFFFFL
	Conversion fill value for integer time intervals (-9.223e+18)

Typedefs
typedef int(*	das_valcmp_func )(const void *, const void *)
	Comparison functions look like this.

Enumerations
enum	das_val_type {   vtUnknown = 0 , vtByte, vtUShort, vtShort,   vtInt, vtLong, vtFloat, vtDouble,   vtTime, vtText, vtByteSeq }
	Enumeration of types stored in Das Array (DasAry) objects Not that any kind of value may be stored in a Das Array, but most of these types have runtime type safty checks. More...

Functions
const void *	das_vt_fill (das_val_type vt)
	Get the default fill value for a given element type. More...
size_t	das_vt_size (das_val_type vt)
	Get the size in bytes for a given element type.
const char *	das_vt_toStr (das_val_type vt)
	Get a text string representation of an element type.
das_valcmp_func	das_vt_getcmp (das_val_type vt)
	Get the comparison function for two values of this type.
das_val_type	das_vt_merge (das_val_type right, int op, das_val_type left)
	What would be the resulting type given an operation on the given value type. More...
bool	das_str2double (const char *str, double *pRes)
	Convert a string value to a 8-byte float, similar to strtod(3). More...
bool	das_str2int (const char *str, int *pRes)
	Convert the initial portion of a string to an integer with explicit over/underflow checks. More...
bool	das_str2bool (const char *str, bool *pRes)
	Convert a string value to a boolean value. More...
bool	das_str2baseint (const char *str, int base, int *pRes)
	Convert a string to an integer with explicit base and overflow checking. More...
bool	das_strn2baseint (const char *str, int nLen, int base, int *pRes)
	Convert an explicit length string to an integer with explicit base with over/underflow checks. More...
double *	das_csv2doubles (const char *s, int *nitems)
	Parse a comma separated list of ASCII values into a double array. More...
char *	das_doubles2csv (char *buf, const double *value, int nitems)
	Print an array of doubles into a string buffer. More...